#include <iostream>

void countdown(int n);

int main(...){
	countdown(4);
	return 0;
}


void countdown(int n){
	using namespace std;
	cout << "Counting down ..." << n << "(n at " << &n << ")" << endl;
	if (n > 0)
		countdown(n-1);
	cout << n <<"(n at " << &n << ")" << ": Kaboom!\n";
}